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- LNo Model) E. G. WATSON.

5 HOSE COUPLING. N0 366,541. Patented July 12,1887.

2% tmaooeo l awvewboz o EZia/s GfWm/son a PETERS, Phnlo-Lilhographer,Washinglun. n. c,

UNITED STATES PATENT OFFICE.

ELIAS G. \VATSON, OF NEVJ BEDFORD, llIASSAGI-IUSETTS, ASSIGNOR OFONE-THIRD TO H. \V. MASON, OF SAME PLACE.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 366,541, dated July 12,1887.

(No model.)

To (LZZ whom it may concern.-

Be it known that I, ELIAS G. WArsoN, a citizen of the United States,residing at New Bedford, in the county of Bristol and State ofMassachusetts, have invented a new and useful ImprovementinHose-Couplings, of which the following is a specification.

Myinvention relates to that class of couplings which are designed tocouple hose through which fluid is conveyed under pressure, especiallythose used in fire-department apparatus; and it has for its object tofurnish a hosecoupling which can be operated instantly and effectually,in order to save valuable time at the commencement of a fire.

To this end myinvention consists in the device illustrated in theaccompanying drawings, in which- Figure l is a view in longitudinalcross section of a part of the couplin Fig. 2 is a side elevation of thesecond part of the coupling. Fig. 3 is a view of the coupling as itappears when coupled together; and Fig.4 is a side view of one of thesprings with its relieving-lever,whieh serves to couple the two partsto.- gether.

In Fig. 1, which is a view of the first part of the coupling, thecomponent parts are a, (which is the base, and to which one end of thehose is attached,) into which is screwed the part b. The part I) isfurnished with the collar c,which slides on over the screw-threads andthe screw threaded collar (Z. Between the shoulders of the collar 0 andthe part b is interposed the packing 0.

In Fig. 2, which is a view of the second part of the coupling, fis thebase,to which one end of the hose is attached, and which is furnishedwith the shoulder g and cone-shaped guide h. The guide 71. is cut awayat the sides, so as to admit the free flow of water through the way soof the couplin The part b is also furnished with the packing-ring r.

Fig. 3 shows the two parts of the coupling ad- 5 justed together,andretained in place by means furnished with the levers Z, havingeccentricshaped ends a, which are pir oted in a slot in the spring madefor the purpose at w. Alight spring, q, is interposed between the springon and the base a, whose end bears against the end a of the lever Z, andserves to keep thelever Z in the position shown until such time as it isdesired to .uncouplc the coupling, as is clearly shown in Fig. 4.

The operation of the device is as follows: The parts Figs. 1 and 2 beingattached to the ends of hose,they are adjusted together by entering thecone-shaped guide It in the way a", and forcing them together until .thecatches c of the springs on take on the shoulder g. If it is de sired tofurther tighten the connection, a lever is inserted in the holes of thecollar d and the collar turned toward the right, which action throws thecollar forward by means of its screw-thread against the face of thecollar 0 and forces its face 8 against the packing-ring r of the pa rtf,and makes a perfectly tight conncction. It will thus be seen that,inorder to couple hose by means of the coupling here illus trated, it isonly necessary to force them. t0- gether, which operation can beperformed in a fraction of a second. In order to uncouple,the leversZare thrown outward until they stand at right angles with the surface ofthe coupling, when, by means of their eccentric ends a, the catches c ofthe springs mare disengaged from the shoulder g, and the parts can bedrawn apart without difficulty.

It will be observed that if necessary the collar cZ may be dispensedwith, in which case the collar 0 would be screw-threaded; but I preferto use the collar (Z, because in tightening the connection the pressureon the packing-rings 0 and r is straight. It will also be observed thatthe guide lb might be dispensed with if four or three springs, m, wereused,'instead of two 5 but I regard it as most practical when providedwith the guide it.

The springs q are not essential to the operation of the coupling; but Iregard them as of value beyond holding thelevers Z in place, inasmuch asthey prevent the abrasion ol" the coupling by the ends of said levers inuncoupling.

Having thns described my invention, what I claim, and desire to secureby Letters Patent, is-- 1. In a hose-coupling, the combination of thepart a, internally threaded at one end and externally' threaded at theother, the part b, hav- 15 ing a reduced externally-threaded end toengage theinternal threads of the part a, the in: termediate collars, cd, the part f, having a shoulder, g, and conical guide h, thespringcatehes m, located on the part a and adapted 20 to engage theshoulder g, and the eecentrio lever Z, pivoted in slots formed in saidspringcatches, substantially as described.

ELIAS G. \VATSON.

Witnesses:

HENRY W. MASON, THos. M. JAMES.

